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Dive into the research topics where Nilufer Celik is active.

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Featured researches published by Nilufer Celik.


International Journal of Gynecological Cancer | 2007

Ascites and epithelial ovarian cancers: a reappraisal with respect to different aspects

A. Ayhan; Murat Gultekin; Cagatay Taskiran; Polat Dursun; P. Firat; Gurkan Bozdag; Nilufer Celik; Kunter Yuce

Ascites is a common finding in patients with epithelial ovarian cancer (EOC). Clinico-pathologic correlations with respect to the presence of ascites, positive cytology and prognostic role of ascites, and the impact of ascitic volumes were not previously studied extensively. A total of 372 patients with EOC were retrospectively evaluated with respect to presence and amount of ascites, cytologic findings, and survival. Two groups were compared by using Chi-square, Students t and Mann-Whitney U, binary logistic regression, Kaplan Meier and Cox-regression analysis tests, where appropriate. Omental metastasis (P < 0.001; OR: 3.21, 95% CI = 1.945–5.297) and mean number of metastatic lymph nodes (P= 0.008; OR: 1.063, 95% CI = 1.016–1.112) were significantly related with presence of ascites. Evaluation of ascitic volume at different thresholds revealed lymphatic-omental metastasis, and also the disease stage to be significantly different among patient groups at lower threshold values and the positive cytology and high-grade diseases at higher threshold values. In conclusion, presence of ascites correlates with both the intraperitoneal and also the retroperitoneal tumor spread. Amount of ascites has different correlations with the clinico-pathologic factors depending on the thresholds chosen. At lower volumes, lymphatic and omental metastasis seems to correlate with the development of ascites. Once ascites develops, tumor grade seems to be important for larger ascites volumes. Neither the presence of ascites or its volume nor the cytologic positivity was an independent predictor of survival.


Journal of Obstetrics and Gynaecology Research | 2008

Helicobacter pylori infection detected by 14C-urea breath test is associated with iron deficiency anemia in pregnant women.

Baris Mulayim; Nilufer Celik; Filiz Yanik

Aims:  To determine whether there is a relationship between Helicobacter pylori (H. pylori) infection, iron deficiency anemia and thrombocytopenia in pregnant women.


Obstetrics & Gynecology | 2005

Routine appendectomy in epithelial ovarian carcinoma : Is it necessary?

Ali Ayhan; Murat Gultekin; Cagatay Taskiran; Mehmet Coskun Salman; Nilufer Celik; Kunter Yuce; Alp Usubutun; Türkan Küçükali

OBJECTIVE: To detect risk factors for the appendiceal metastasis and to define the role of routine appendectomy in patients with epithelial ovarian carcinoma. METHODS: A total of 285 patients with epithelial ovarian carcinoma who had undergone primary cytoreductive surgery including appendectomy were retrospectively evaluated. Appendiceal involvement was divided into 2 groups: gross and microscopic. Clinicopathologic variables were evaluated for possible significance in terms of appendiceal metastasis. A second analysis was performed using the same variables to detect a possible relation with microscopic metastasis. In a subgroup analysis, we also analyzed the role of routine appendectomy in patients with clinically early stage disease. RESULTS: One-hundred six patients were found to have appendiceal metastasis (37%). Univariate and multivariate analysis revealed stage of disease as the unique factor determining the appendiceal metastasis (P < .001). Five patients with apparently stage I-II disease were upstaged due to isolated appendiceal metastasis (4.9%). In the second analysis excluding the patients with gross involvement, ascites was an independent predictor of microscopic involvement (P < .01). CONCLUSION: Routine appendectomy is indicated in all epithelial ovarian carcinoma patients as part of the initial surgical staging procedure because of a considerable rate of upstaging in early stage disease and optimal cytoreduction in advanced stages. LEVEL OF EVIDENCE: II-3


The European Journal of Contraception & Reproductive Health Care | 2006

A lost intrauterine device. Guess where we found it and how it happened

Baris Mulayim; Sema Mülayim; Nilufer Celik

Perforation of the uterus by an intrauterine device (IUD) is a serious complication occurring at or following 1/350 to 1/2500 insertions. It is more common among women with ‘lost’ IUDs. If a woman presents with pelvic pain and a history of a ‘lost’ IUD, X-rays of the abdomen and of the pelvis should be ordered. We report on a ‘lost’ IUD that had been inserted 12 years previously. It was found in the lower anterior abdominal wall. Most probably uterine perforation had happened during a dilatation and curettage (D & C) attempted for removal of the device. Thereafter the IUD must have migrated to the abdominal wall. This case illustrates that unless it can be recovered by simple traction on the threads, a trained medical professional should be called upon for removal of the IUD.


Fertility and Sterility | 2010

Sublingual misoprostol for cervical ripening before diagnostic hysteroscopy in premenopausal women: a randomized, double blind, placebo-controlled trial.

Baris Mulayim; Nilufer Celik; Gogsen Onalan; Tayfun Bagis; Hulusi B. Zeyneloglu

OBJECTIVE To evaluate the effectiveness of sublingual misoprostol for cervical ripening before diagnostic hysteroscopy in premenopausal women. DESIGN Placebo-controlled, double-blind, randomized trial. SETTING University hospital. PATIENT(S) Fifty-two women with an indication for diagnostic hysteroscopy. INTERVENTION(S) Randomized women who had received either 200 mug of misoprostol (n = 25) or placebo (n = 27) sublingually 2 hours before hysteroscopy. Two subgroups (women with or without previous vaginal delivery) were formed. MAIN OUTCOME MEASURE(S) Number of women requiring cervical dilatation, duration of dilatation, ease of dilatation, and complications during procedure. RESULT(S) In the misoprostol group, 14 patients needed cervical dilatation, versus 21 in the placebo group. Duration of dilatation was longer in the placebo group than in the misoprostol group. In subgroup 1, seven patients in the misoprostol group (n = 13) and nine patients in the placebo group (n = 12) needed cervical dilatation. The duration of the dilatation was similar between the groups. In subgroup 2, both the need for cervical dilatation (58.3% vs. 80.0%) and the duration of dilatation (31.0 +/- 18.8 vs. 73.0 +/- 82.0 seconds) were found to be lower in the misoprostol (n = 15) than in the placebo (n = 12) group, respectively. Those differences were all not significant. CONCLUSION(S) Sublingual misoprostol before diagnostic hysteroscopy did not seem to facilitate cervical ripening statistically; however, the results are remarkable and are promising clinically. Further studies are required to reassess the use of sublingual misoprostol in patients before hysteroscopy.


International Journal of Gynecology & Obstetrics | 2008

Early oral hydration after cesarean delivery performed under regional anesthesia.

Baris Mulayim; Nilufer Celik; Serdar Kaya; Filiz Yanik

To establish an early, safe, and well‐tolerated time to start oral hydration after cesarean delivery.


Fertility and Sterility | 2011

An appraisal of serum preptin levels in PCOS

Onder Celik; Nilufer Celik; Seyma Hascalik; Ibrahim Sahin; Suleyman Aydin; Elif Ozerol

Plasma preptin levels were higher in women with PCOS compared with the control group (mean±SD, 823.2±140.7 vs. 324.9±147.3 pg/mL). This article suggests a potential role of preptin in the pathogenesis of PCOS.


Reproductive Biomedicine Online | 2010

Angiotensin-converting enzyme gene polymorphism and risk of insulin resistance in PCOS

Onder Celik; Elif Yesilada; Seyma Hascalik; Nilufer Celik; Ibrahim Sahin; Lezzan Keskin; Elif Ozerol

The aim of this study was to establish the frequency of angiotensin-converting enzyme (ACE) insertion (I) or deletion (D) gene polymorphism in women with polycystic ovary syndrome (PCOS) and to examine the association of this polymorphism with insulin resistance. A total of 32 women with PCOS and 31 healthy, age- and body mass index-matched controls were studied. Serum lipids, fasting glucose, insulin and other hormones concentrations were measured. Homeostasis model assessment was used to estimate insulin resistance (HOMA-IR). DNA was extracted from peripheral blood leukocytes and genotyping of ACE I/D polymorphism was carried out by polymerase chain reaction. ACE genotypes were distributed as follows: DD was present in 16 (50%), ID in 12 (37.5%) and II in four (12.5%) PCOS patients, and DD in seven (22.6%), ID in 20 (64.5%) and II in four (12.9%) of healthy subjects. The frequency of D and I alleles were found in 69% and 31% of the PCOS group and 55% and 45% in the control group, respectively. There were no significant differences regarding the genotypic distribution and allelic frequency between the groups. However the ACE DD genotype was significantly associated with serum insulin concentrations and HOMA-IR measurement (both P=0.005). ACE DD genotype is associated with an increased insulin resistance in women with PCOS.


Journal of Obstetrics and Gynaecology Research | 2007

Posterior leukoencephalopathy syndrome as a cause of reversible blindness during pregnancy

Lutfu S. Onderoglu; Polat Dursun; Murat Gultekin; Nilufer Celik

Cortical blindness is a rare and dramatic complication of pre‐eclampsia. The precise nature of the pathogenesis of this condition has not previously been understood. Three preeclamptic patients with unremarkable previous medical history presented with acute blindness between the 28th and 33rd weeks of pregnancy. They were all diagnosed as posterior leukoencephalopathy syndrome (PLES). In all these patients, MRI study revealed the typical feature of gray‐white matter edema localized to the temporo‐parieto‐occipital areas. Vision and MRI findings were restored in all patients after delivery. Although PLES has been described as a puerperal clinicoradiologic entity, it may be seen in preeclamptic‐eclamptic patients during the pregnancy. Therefore neuro‐imaging studies should be carried out in pregnant patients with visual disturbances in order to exclude PLES. Prompt diagnosis, immediate control of blood pressure, and elimination of possible causes resolves clinical and imaging findings.


Reproductive Sciences | 2013

Surgical Removal of Endometrioma Decreases the NF-kB1 (p50/105) and NF-kB p65 (Rel A) Expression in the Eutopic Endometrium During the Implantation Window

Onder Celik; Ebru Celik; Ilgin Turkcuoglu; Ercan Yilmaz; Mustafa Ulas; Yavuz Simsek; Abdullah Karaer; Nilufer Celik; Nasuhi Engin Aydin; Ibrahim Halil Ozerol; Cihat Unlu

We aimed to investigate whether the surgical removal of endometrioma alters the nuclear factor-kappa B1 (NF-kB1; p50/105) and NF-kB p65 (Rel A) expression in the eutopic endometrium of infertile women with endometrioma before and after laparoscopic removal of the ovarian endometrioma during the mid-secretory phase. Infertile women with endometrioma (n = 15) were enrolled. Infertile patients with nonendometriotic ovarian cyst (n = 10) and healthy fertile women (n = 10) were recruited as controls. Endometrial samples were obtained before and 3 months after the laparoscopic cystectomy. The NF-kB1 (p50/105) levels were analyzed by enzyme-linked immunosorbent assay (ELISA) in the endometrium of all groups before and after laparoscopic ovarian cystectomy during implantation window. Expression of NF-kB1 (p50/105) in eutopic endometrium was significantly higher in infertile women with endometrioma compared to nonendometriotic cyst and fertile controls (P < .05). Laparoscopic cystectomy resulted in a significant decrease in NF-kB1 expression in women with endometrioma. The NF-kB p65 (Rel A) immunoreactivity of eutopic endometrium decreased significantly subsequent to the surgical removal of the endometrioma. In conclusion, increased endometrial NF-kB expression may contribute to endometriosis-associated infertility.

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